Difference b/w array 3dB beam width and array bearing resolution

Started by naumankalia 7 years ago1 replylatest reply 7 years ago169 views

Hello all

Can any one kindly explain the difference b/w array beam width (3 dB) and array bearing resolution and what is the relation b/w them?


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Reply by Rick LyonsApril 6, 2017

Hi. At first I thought your text "b/w" stood for "bandwidth" but it turns out it means "between."  naumankalia, correct spelling makes it easier for people to read your posts.

Have a look at, and click the "Show Answer" button, at:


While looking at that diagram, imagine if the antenna's main beam width was much more narrow. You can imagine that a more narrow main beam would provide a more accurate estimate of the bearing (direction) of the radar's target.